Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
sach thu » sach thue, sach thieu, sach tham
su triet » su viet, su tien, ve triet
hanh hai » thanh hai, nhanh hai, hang hai
sach thi » sach tai, sach thieu, sach tham
cham tuc » nham thuc, pham thuc, tham thuc
va hanh » van hanh, va thanh, va danh
hieu ve » hieu va, hieu van
hanh xa » hanh va, hanh ma, hanh xu
ve cham » va cham, ve chat, vu cham
tuc va » thuc va, truc va, tuc xa

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((sach thi) or (sach thu)) hanh xa hoi. hieu ve cham tuc va hanh hai ((su triet) or (cua viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach thi) OR (sach thu)) hanh xa hoi. hieu ve cham tuc va hanh hai ((su triet) OR (cua viet)).
• Adding a wildcard symbol may retrieve word variants: tu ((sach thi) or (sach thu)) hanh xa hoi. hieu ve cham tuc va hanh hai ((su triet) or (cua viet))*.